Update.

1998-05-31  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/sysdep.S: Use C_SYMBOL_NAME when
	referring to errno and _errno.

	* sysdeps/arm/fpu/feholdexcpt.c: New file.

	* sysdeps/i386/fpu_control.h: Fix typo.

	* sysdeps/arm/bits/setjmp.h (__jmp_buf): Remove floating-point support.
	(_JMPBUF_UNWINDS): Added.
	* sysdeps/arm/fpu/bits/setjmp.h: New file.

1998-05-25  Gordon Matzigkeit  <gord@profitpress.com>

	* sysdeps/mach/hurd/Makefile: Use the `before-compile' target in
	order to build header files, not `generated'.

	* Rules (before-compile): New target which depends on all
	$(before-compile) files.

3 files changed, 82 insertions, 5 deletions

diff --git a/sysdeps/arm/bits/setjmp.h b/sysdeps/arm/bits/setjmp.h
index ea25a9ba87..6d8737970b 100644
--- a/sysdeps/arm/bits/setjmp.h
+++ b/sysdeps/arm/bits/setjmp.h
@@ -23,10 +23,14 @@
 #endif
 
 #ifndef _ASM
-/* Jump buffer contains v1-v6, sl, fp, sp, pc and (f4-f7) if we do FP. */
-# if __ARM_USES_FP
-typedef int __jmp_buf[22];
-# else
+/* Jump buffer contains v1-v6, sl, fp, sp and pc.  Other registers are not
+   saved.  */
 typedef int __jmp_buf[10];
-# endif
 #endif
+
+#define __JMP_BUF_SP		8
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))
diff --git a/sysdeps/arm/fpu/bits/setjmp.h b/sysdeps/arm/fpu/bits/setjmp.h
new file mode 100644
index 0000000000..895356fe0a
--- /dev/null
+++ b/sysdeps/arm/fpu/bits/setjmp.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Define the machine-dependent type `jmp_buf'.  ARM version. */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+/* Jump buffer contains v1-v6, sl, fp, sp and pc.  Other registers are not
+   saved.  */
+typedef int __jmp_buf[22];
+#endif
+
+#define __JMP_BUF_SP		8
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))
diff --git a/sysdeps/arm/fpu/feholdexcpt.c b/sysdeps/arm/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..5679ccc243
--- /dev/null
+++ b/sysdeps/arm/fpu/feholdexcpt.c
@@ -0,0 +1,37 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  unsigned long int temp;
+
+  /* Store the environment.  */
+  _FPU_GETCW(temp);
+  envp->cw = temp;
+
+  /* Now set all exceptions to non-stop.  */
+  temp &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
+  _FPU_SETCW(temp);
+
+  return 1;
+}